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/* APPLE LOCAL file Macintosh alignment */
/* { dg-do run } */
/* { dg-options "-Wno-long-long" } */
/*
* GCC alignment test for bit-fields.
* This came up initially as an alignment problem in the kernel.
* Fred Forsman
* Apple Computer, Inc.
* (C) 2000-2002.
* Last modified 2002-2-18.
*/
/* Check whether we are testing GCC 3 or later. */
#ifdef __GNUC__
#if __GNUC__ >= 3
#define GCC3 1
#else
#define GCC3 0
#endif
#endif
#include <stdio.h>
#include <stddef.h>
#include <string.h>
/*
* The following defined determines whether we should compare against
* the values produced by GCC 2.95 or against the values I expect given
* my understanding of the alignment rules.
*/
#define USE_GCC2_VALUES 1
#define NAME2(name,mode) mode##_##name
#define NAME(name,mode) NAME2(name,mode)
#define STR(s) #s
#define SIZEOF3(name) STR(sizeof(name)), sizeof(name)
#define SIZEOF2(name,mode) SIZEOF3(mode##_##name)
#define SIZEOF(name,mode) SIZEOF2(name,mode)
#define OFFSETOF3(name,field) STR(offsetof(name,field)), offsetof(name,field)
#define OFFSETOF2(name,mode,field) OFFSETOF3(mode##_##name,field)
#define OFFSETOF(name,mode,field) OFFSETOF2(name,mode,field)
typedef unsigned char UINT8;
typedef unsigned long UINT32;
static int bad_option = 0;
static int flag_verbose = 0;
static int nbr_failures = 0;
/* === mac68k alignment problem in kernel === */
typedef unsigned PEF_UBits32, ByteCount;
typedef short SInt16;
/* === power === */
#pragma options align=power
#define MODE power
#include "align-test-4.h"
/* === mac68k === */
#pragma options align=mac68k
#undef MODE
#define MODE mac68k
#include "align-test-4.h"
/* === pack(2) === */
#pragma pack(2)
#undef MODE
#define MODE pack2
#include "align-test-4.h"
static void check(char * rec_name, int actual, int expected, char * comment)
{
if (flag_verbose || (actual != expected)) {
printf("%-30s = %2d (%2d) ", rec_name, actual, expected);
if (actual != expected) {
printf("*** FAIL");
nbr_failures++;
} else
printf(" PASS");
printf(": %s\n", comment);
}
}
static void check_option(char *option)
{
if (*option == '-') {
if (strcmp(option, "-v") == 0)
flag_verbose = 1;
else {
fprintf(stderr, "*** unrecognized option '%s'.\n", option);
bad_option = 1;
}
} else {
fprintf(stderr, "*** unrecognized option '%s'.\n", option);
bad_option = 1;
}
}
int main(int argc, char *argv[])
{
int i;
for (i = 1; i < argc; i++)
check_option(argv[i]);
if (bad_option)
return 1;
#undef MODE
#define MODE power
#if USE_GCC2_VALUES
check(SIZEOF(LoaderExport, MODE), 12, "kernel struct");
check(OFFSETOF(LoaderExport, MODE, offset), 4, "offset of offset");
check(OFFSETOF(LoaderExport, MODE, sectionNumber), 8, "offset of sectionNumber");
check(SIZEOF(S1, MODE), 8, "bitfields & char");
check(SIZEOF(S2, MODE), 8, "int & char");
check(SIZEOF(S3, MODE), 12, "char, bitfields(32), char");
check(OFFSETOF(S3, MODE, f3), 8, "offset of 2nd char");
check(SIZEOF(S4, MODE), 8, "char, bitfields(32), char");
check(OFFSETOF(S4, MODE, f3), 7, "offset of 2nd char");
check(SIZEOF(S5, MODE), 4, "char, bitfields(16), char");
check(OFFSETOF(S5, MODE, f3), 3, "offset of 2nd char");
check(SIZEOF(S6, MODE), 4, "char, bitfields(8), char");
check(OFFSETOF(S6, MODE, f3), 2, "offset of 2nd char");
#else
check(SIZEOF(LoaderExport, MODE), 12, "kernel struct");
check(OFFSETOF(LoaderExport, MODE, offset), 4, "offset of offset");
check(OFFSETOF(LoaderExport, MODE, sectionNumber), 8, "offset of sectionNumber");
check(SIZEOF(S1, MODE), 8, "bitfields & char");
check(SIZEOF(S2, MODE), 8, "int & char");
check(SIZEOF(S3, MODE), 12, "char, bitfields(32), char");
check(OFFSETOF(S3, MODE, f3), 8, "offset of 2nd char");
check(SIZEOF(S4, MODE), 12, "char, bitfields(32), char");
check(OFFSETOF(S4, MODE, f3), 8, "offset of 2nd char");
check(SIZEOF(S5, MODE), 12, "char, bitfields(16), char");
check(OFFSETOF(S5, MODE, f3), 8, "offset of 2nd char");
check(SIZEOF(S6, MODE), 12, "char, bitfields(8), char");
check(OFFSETOF(S6, MODE, f3), 8, "offset of 2nd char");
#endif
#undef MODE
#define MODE mac68k
#if USE_GCC2_VALUES
check(SIZEOF(LoaderExport, MODE), 10, "kernel struct");
check(OFFSETOF(LoaderExport, MODE, offset), 4, "offset of offset");
check(OFFSETOF(LoaderExport, MODE, sectionNumber), 8, "offset of sectionNumber");
#if 1
// GCC 2 is wrong on the following.
check(SIZEOF(S1, MODE), 6, "bitfields & char");
#else
check(SIZEOF(S1, MODE), 8, "bitfields & char");
#endif
check(SIZEOF(S2, MODE), 6, "int & char");
check(SIZEOF(S3, MODE), 6, "char, bitfields(32), char");
check(OFFSETOF(S3, MODE, f3), 5, "offset of 2nd char");
check(SIZEOF(S4, MODE), 6, "char, bitfields(32), char");
check(OFFSETOF(S4, MODE, f3), 5, "offset of 2nd char");
check(SIZEOF(S5, MODE), 4, "char, bitfields(16), char");
check(OFFSETOF(S5, MODE, f3), 3, "offset of 2nd char");
check(SIZEOF(S6, MODE), 4, "char, bitfields(8), char");
check(OFFSETOF(S6, MODE, f3), 2, "offset of 2nd char");
#else
check(SIZEOF(LoaderExport, MODE), 10, "kernel struct");
check(OFFSETOF(LoaderExport, MODE, offset), 4, "offset of offset");
check(OFFSETOF(LoaderExport, MODE, sectionNumber), 8, "offset of sectionNumber");
check(SIZEOF(S1, MODE), 6, "bitfields & char");
check(SIZEOF(S2, MODE), 6, "int & char");
check(SIZEOF(S3, MODE), 8, "char, bitfields(32), char");
check(OFFSETOF(S3, MODE, f3), 6, "offset of 2nd char");
check(SIZEOF(S4, MODE), 8, "char, bitfields(32), char");
check(OFFSETOF(S4, MODE, f3), 6, "offset of 2nd char");
check(SIZEOF(S5, MODE), 6, "char, bitfields(16), char");
check(OFFSETOF(S5, MODE, f3), 4, "offset of 2nd char");
check(SIZEOF(S6, MODE), 4, "char, bitfields(8), char");
check(OFFSETOF(S6, MODE, f3), 2, "offset of 2nd char");
#endif
#undef MODE
#define MODE pack2
#if USE_GCC2_VALUES
check(SIZEOF(LoaderExport, MODE), 10, "kernel struct");
check(OFFSETOF(LoaderExport, MODE, offset), 4, "offset of offset");
check(OFFSETOF(LoaderExport, MODE, sectionNumber), 8, "offset of sectionNumber");
/* GCC2 used to have this as '8', but it should really be 6. */
check(SIZEOF(S1, MODE), 6, "bitfields & char");
check(SIZEOF(S2, MODE), 6, "int & char");
check(SIZEOF(S3, MODE), 6, "char, bitfields(32), char");
check(OFFSETOF(S3, MODE, f3), 5, "offset of 2nd char");
check(SIZEOF(S4, MODE), 6, "char, bitfields(32), char");
check(OFFSETOF(S4, MODE, f3), 5, "offset of 2nd char");
check(SIZEOF(S5, MODE), 4, "char, bitfields(16), char");
check(OFFSETOF(S5, MODE, f3), 3, "offset of 2nd char");
check(SIZEOF(S6, MODE), 4, "char, bitfields(8), char");
check(OFFSETOF(S6, MODE, f3), 2, "offset of 2nd char");
#else
check(SIZEOF(LoaderExport, MODE), 10, "kernel struct");
check(OFFSETOF(LoaderExport, MODE, offset), 4, "offset of offset");
check(OFFSETOF(LoaderExport, MODE, sectionNumber), 8, "offset of sectionNumber");
check(SIZEOF(S1, MODE), 6, "bitfields & char");
check(SIZEOF(S2, MODE), 6, "int & char");
check(SIZEOF(S3, MODE), 8, "char, bitfields(32), char");
check(OFFSETOF(S3, MODE, f3), 6, "offset of 2nd char");
check(SIZEOF(S4, MODE), 8, "char, bitfields(32), char");
check(OFFSETOF(S4, MODE, f3), 6, "offset of 2nd char");
check(SIZEOF(S5, MODE), 6, "char, bitfields(16), char");
check(OFFSETOF(S5, MODE, f3), 4, "offset of 2nd char");
check(SIZEOF(S6, MODE), 4, "char, bitfields(8), char");
check(OFFSETOF(S6, MODE, f3), 2, "offset of 2nd char");
#endif
if (nbr_failures > 0)
return 1;
else
return 0;
}
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